Reinforced-concrete railway-sleeper.



1. NEUIL.

REINFORCED CONCRETE RAILWAY SLEEPER.

APPLICATION FILED MAR. 6.1914.

Patented May 4, 1915.

2 SHEETS-SHEET l WITNESSES my W m Il A 1. NEE'lL.

REINFORCED CONCRETE RAILWAY SLEEPER.

APPLICATION FILED MAR. 6 i914.

Ptented May 4, 1915.

2 SHEETS-SHEET 2.

WITNESSES' 1 VNTOR www I I Allume] UNITED l srA'rEs rnrnnr orricn.

, .y f y .IAN .Nnn'rmr., or rnneum AUSTRIA-HUNGARY, AssmNon To .roemramen comonline-MANNSFELD, or Dennis, AUSTRIA-HUNGARY. 1

nErNroncnD-concmn Runway-simu,

` To all whom 'it muy concern.

` Be it known 'that I, JAN Nnn'ri'm., citizen off the Austro-HungarianEmpire, residing at Prague, II, Austria-Hungary, have inwith a sleeperof compressed cement and fibrous material, such as asbestos, of areinforcement and various details hereinafter particularly described andset forth in the claims.

In the accompanying drawings: Figure 1 shows a longitudinal sectionthrough one form of sleeper according to this invention; Fig. 2 shows aplan thereof; Fig. 3 shows a cross section; Figs. 4 and 5 show anelevation in section and a plan respectively of details; Fig. 6 shows alongitudinal section of a modified form of sleeper; Fig. 7 shows a crosssection thereof; Figs. 8 and 9 show details according to thismodification.

The sleeper, Figs. 1 to 5, during its manufacture is provided with avertical bore at the two places where attachment to the rails takesplace, the said bores being adapted to .p

receive bolts 1. Each of these bolts has mounted at its lower end a nut2 and is formed at the upper end with an integral conical head 3 inorder to secure and hold a rail support or chair base 4 in place. Thechair base 4 has a bent extension 5 and integral side pieces 6 havingopenings through which bolts 7 project in such a manner that the latterare adapted to connect the extension 5 with a separate angle plate 8 bymeans of nuts 10,-the said extension and the plate 8 thus lying oppositeone another and allowing of the insertion between them of the .base ofthe rail. The angle plate 8 is hereby so formed that it abuts at 9against a step provided in the chair base 4 and is prevented in this wayfrom displacement. The angle plate is also provided with an extensionthe latter being in the shape of a loop 11 to which is secured a steelband 12 partly emspecification of Letters ratent.

Application mea :man s, 1914.- serm No. 822,983.

Patented May 4`. 1915.

andv angle plate on the other end press, to which the sleeper issubjected is placed in a mold and firmly embedded with- 1n thecernent'and asbestos, so that the coils arecloose around their bolts,that is, they must allow the bolts 1 to be subsequently inserted. Thusthe material adjacent to the bolts 1 is considerably strengthened andattains a certain stability. The second important part of thereinforcement of the sleeper consists of thin rods 15 which arelongitudinally embedded in the material and held in position by beingthreaded through supports or stays 16, of trapezoidal form. Thedisposition of the rods 15 is clearly shown in Figs. 1 and 3 and fromthese it will be easily understood that the rods 15 in combination withthe rod 13 impart great bearing strength and resistance to the sleeper,while the trapezoidal stays 16 insure the proper disposition of the rodsin the sleeper for' the maximum resistance to the stresses under whichthe sleeper is likely to be laced.

The reinforcement of the sleeper'according to the modication, Figs. 6 to9, consists of rods 15 as before described but in this case the latterare supported by two different kinds of trapezoidal supports or stays 17and 18. The supports or stays 17 are approximately of the constructionshown with reference to those of 16; they possess, however, projections19 for the purpose hereinafter mentioned. Each of the supports or stays18, Figs. 6 to 8, comprises two abutting members of the form of atrapezoid and each support is further formed with two semicirculargrooves the two grooves in each member lying exactly opposite the otherand thus forming two sleeves 20 which are riveted at 21. Two suchsupports or stays 18 are mounted below each base plate 22 of the rails,the sleeves 20 serving to receive two pairs of bolts 23 and the latterserving'as a means for attachment of said rails to chair base 22. Thechair base has an overlapping integral extension 22 and a d'etahablemember 22 lying opposite said extension and being substantially ofsimilar form, the two pairs of bolts 23 projecting throu h A22 and 22and securing the rail. It wi he seen that the reinforcement according tothis modification provides the immediate means for securing the chair.bases and is consequently cheaper than that of the iirst constructionsince the steel bands 12 and the rods 13 are dispensed with.

1.-A, reinfforoed concrete railway sleeper comprising a body ofcompressed cement and ibrousmaterlal, a reinforcement consistingoftrapezoidal stays and rods threadedthrough said stays, chair bases onsaid sleeper, bolts for holding vsaid chair bases on tothe :sleeper andmeans within the sleeper connecting said bolts together for the purpose.pofjmaintaining the chair bases at 'the correctdistance apart,substantially as hereinbefore set forth.

2. A- reinforced concrete railway sleeper comprising, al body ofcompressed cement and fibrous material, and having bores for bolts forsecuring chair bases to said sleeper, and a reinforcement consisting ofstays of trapezoidal form, rods threaded through said stays, and a rodterminating in coiled springs surrounding the aforesaid bores,

substantially as and for the purpose hereinbefore set forth.

3. A reinforced concrete railway sleeper comprising a body of compressedcement and brous material, a reinforcement consisting of trapezoidalstays and rods thread- Yed through said stays, chair bases on saidsleeper, bolts passing through said sleeper ,for securing the said4chair bases thereto, angle plates adapted to be bolted to said chairbases, and a strap connecting the angle plates, substantially as and forthe purpose hereinbefore set forth.

4. A reinforced'concrete sleeper comprising a body of compressed cementand asbestos fiber, said body having recesses for bedded in said bodyconsisting of ,a plurality of trapezoidal stays, and rods threadedthrough said stays, some of stays having sleeves coincident with thebores in the body, substantially as and for before setforth.

G. A reinforced concrete lrailwaysleper,

comprising a body ofcompressed :cement and fibrous material,.fiat staysin the Vbody portion, each stay comprising a horizontal` portion and twodownwardly and outwardly extended. end portions, a plurality ,ofrodsembedded in the body portion and. extending through openings formed inthe stays;

A reinforced concrete railway sleeper comprising a body portion ofcompressed cement, fiat stays embedded in the body porthe purposehereintion, each stay comprising a flat member I formed with transverseopenings, and having a horizontal upper portion and downwardly andoutwardly inclined end portions, and rods extending through thetransverse openings.

8. A reinforced concrete railway sleeper? i 85 and asbestos, flat staysin the body portion,- each stay comprising a horizontal portion and twodownwardly and outwardly eX-.

comprising a body of compressed cement tended end portions, a Vpluralityof rods embedded in the body portion and extending through openingsformed in the stays.

In testimony whereof I have signed my name to this specification in thepresence 'of two subscribing witnesses.

JAN NESETIL. Witnesses JOSEF LErBRovLIoH, JAN B. VOJEK.

